
... I'm not sure that incandescent bulb is good for anything other than a bit of blue tinted heat lol
I'd avoid bulbs that look like this, and look into compact flourescent blubs (CFLS) ... you can get them quite small ... and typcially use 2700k for flowering and the blue (6500k) for veg. Although you could use flowering bulbs all the way through for an auto
Hope this helps